<div>
  <button @click="maskClick">点击</button>
  <router-view></router-view>
  <div style="width: 200px; height: 30px; border: 1px solid #000000;" @click="maskClick">{{date}}</div>
  <calendar title="到达日期" ref="calendar" min-date="2017-01-01" max-date="2017-02-10"></calendar>
</div>
